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Bontrager Freehub Body Removal

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Posts: 3
Joined: Sep 2012
Post: #1
Bontrager Freehub Body Removal
Can anyone help me? I have managed to get my lbs to remove my Bontrager (Shimano config) free hub body from a Bontrager SSR wheel. The lbs very helpfully removed it for me as I could not locate the tool required to do the job. They have ordered a new part, but I would like to fit it myself. To do this, I need to know the tool / size needed. A 10mm allen key is not big enough. Looking down the freehub, I can see, within the body of the freehub body, a bolt that looks like a torx fitting, but I cannot establish its size, or indeed confirm it's a torx fitting. It has been suggested that a 12mm allen key will do the job. Is this correct?
Sep 24, 2012 09:01 AM
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Bill Offline
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NY,USA
Posts: 2,765
Joined: Sep 2009
Post: #2
RE: Bontrager Freehub Body Removal
Get yourself a SAE/Metric compliment size of allen key set. 12mm should do it, but if you have a set and need bigger or smaller you will have them. Cheaper to buy a set then just one.

Good maintenance to your Bike, can make it like the wheels are, true and smooth!
Sep 24, 2012 03:06 PM
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RobAR Offline
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Mountain Home, AR
Posts: 725
Joined: Sep 2010
Post: #3
RE: Bontrager Freehub Body Removal
Over the years, Bontrager has used a few designs of hubs. SSR is relatively new so, one of the two here http://www.parktool.com/blog/repair-help/freehub-service are probably what you need. If not, with more info I'm sure we can find it.

Wheelies don't pop themselves. (from a QBP fortune cookie)
Sep 24, 2012 05:03 PM
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Post: #4
RE: Bontrager Freehub Body Removal
I have tweeted Bontrager themselves, who came back and told me I needed a 12mm wrench. I went out and purchased the wrench, and lo and behold, it doesn't fit!! Bontrager cannot even tell me their own fitting size!! The 12mm is too big, and the 10mm is too small. Logically (I know what you're thinking), an 11mm should fix it? Is this right? I am concerned that if Bontrager cannot tell me the right answer, who can?!
Sep 27, 2012 08:35 AM
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RobAR Offline
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Mountain Home, AR
Posts: 725
Joined: Sep 2010
Post: #5
RE: Bontrager Freehub Body Removal
That narrows it down to an 11 mm, then. Any possibility that it's not the OEM hub body? And, you can't really blame Bontrager as they only 'spec' what quality requirements the hub must meet at the SSR level and don't actually manufacture it. The fixing-bolt hex size is up to the mfr and may even change during a production run, according to what they have available to keep the line running.

Wheelies don't pop themselves. (from a QBP fortune cookie)
Sep 28, 2012 04:45 PM
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Bill Offline
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NY,USA
Posts: 2,765
Joined: Sep 2009
Post: #6
RE: Bontrager Freehub Body Removal
Not trying to make things confusing but if the 11mm don't do the fix then try SAE size Allen/hex wrench.

Good maintenance to your Bike, can make it like the wheels are, true and smooth!
Sep 28, 2012 07:42 PM
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Posts: 3
Joined: Sep 2012
Post: #7
RE: Bontrager Freehub Body Removal
Thanks Gents. You're right in that I can't blame Bontrager. They have been very helpful in the past. I have sent back the 12mm and ordered a Park Tool 11mm. I have also found out that an 11mm is the equivalent of a 7/16" so I hopefully this will cover the imperial / metric issue. Does anyone know what the Torx size equivalent of an 11mm fitting would..........just in case??
Sep 28, 2012 11:25 PM
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RobAR Offline
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Mountain Home, AR
Posts: 725
Joined: Sep 2010
Post: #8
RE: Bontrager Freehub Body Removal
I can assure you that it's not a Torx fitting.

Wheelies don't pop themselves. (from a QBP fortune cookie)
Sep 29, 2012 05:15 AM
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Bdude83 Offline
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Pro Mechanic since '04
Posts: 4
Joined: Jan 2013
Post: #9
RE: Bontrager Freehub Body Removal
It's definitely an 11mm allen. I had the same issue with my Bontrager Select. The link below is from Bontragers manual.

http://www.manualslib.com/manual/19080/Bontrager-231793.html
Jan 29, 2013 11:21 AM
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Gixxer Offline
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Posts: 1
Joined: Jul 2013
Post: #10
RE: Bontrager Freehub Body Removal
(Jan 29, 2013 11:21 AM)Bdude83 Wrote:  It's definitely an 11mm allen. I had the same issue with my Bontrager Select. The link below is from Bontragers manual.

http://www.manualslib.com/manual/19080/Bontrager-231793.html

Problem solved! In fact you probably have the right size in your toolbox.

I had the same problem with my Bontrager AT650 wheel which needed an 11mm allen key to take off the Freehub body. We all know 11mm is about 7/16". Guess what size a 3/8" drive socket extension is on the male side? 7/16! So I connected the socket extension to my 3/8 drive socket wrench, inserted the male side (without any socket on it of course) into the drive side of the freewheel body and turned CCW. The freewheel body came off easily!

A few caveats. The socket extension only will grab at 4 points so be carefull you don't strip it. If your freehub does not come off easily you're gonna need to buy an 11mm allen key.

Hope this helps. Smile
Jul 14, 2013 02:27 PM
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